Nearly 47 GW of onshore wind capacity was commissioned around the world in 2017, down 12% on 2016, in part due to a slowdown in China. BNEF expects capacity additions to rebound in 2018, growing 17% to 55 GW.

Vestas accounted for 7.7 GW of the onshore capacity deployed last year. BNEF said that the number two Siemens Gamesa Renewable Energy SA (BME:SGRE) is narrowing the gap with 6.8 GW commissioned, increasing its market share to 15% from the 11% held by its two predecessor companies in 2016.

China's Xinjiang Goldwind Science & Tech Co Ltd (HKG:2208) was third with 5.4 GW commissioned and a market share of 11%. General Electric Co (NYSE:GE) came next with 4.9 GW, equivalent to a 10% market share.

Overall, the top four manufacturers accounted for 53% of the turbines commissioned in 2017. According to Albert Cheung, head of analysis at BNEF, further consolidation in the sector would not be surprising.

Fifth ranked Enercon GmbH of Germany with 3.1 GW. Six other manufacturers from Europe and China were responsible for between 1 GW and 3 GW of new capacity.